Year	Percent
1990	0
1994	0.03682
1995	0.10949
1996	0.59115
1997	0.7978
1998	1.97873
1999	2.35569
2000	3.11578
2001	3.86302
2002	6.1
2003	7.8
2004	10
2005	12.8
2006	16.4
2007	21.1
2008	23.6
2009	24.3
2010	27.67
2011	37.43861
2012	33.79
2013	37.1
2014	40.40274
2015	42.22122
2016	44.36686